iterm: Add the default iTerm2 configuration
iterm: Add the default iTerm2 configuration

This is the default iTerm2 configuration (at least I have not changed
anything). Adding this first has the advantage that each change can be
grouped into commits, which work off of the default settings.

NOTE: If you want to use the configuration, you have to run
```
 defaults write com.googlecode.iterm2.plist\
 PrefsCustomFolder '~/.config/iterm2'
```

PigeonF/.dotfiles